Condensers and refrigeration equipment

Abstract

The present invention discloses a condenser and a refrigeration device. The condenser includes a condenser shell, an air inlet pipe, a condenser tube bundle and an oil separator. The air inlet pipe is arranged on the condenser shell. The condenser tube bundle is arranged in the condenser shell. The oil separator is arranged in the condenser shell and is connected with the air inlet pipe, and the oil separator is located below the condenser tube bundle. The condenser of the present invention arranges the oil separator below the condenser tube bundle. After the oil-gas mixture is separated from the oil and gas, the lubricating oil directly leaves the bottom of the condenser shell and returns to the compressor. The gaseous refrigerant moves upward and diffuses into the inside of the condenser tube bundle to fully contact and exchange heat with the condenser tube. Compared with the related art in which the gaseous refrigerant needs to exchange heat with the condenser tube located at the lower side of the oil separator, the gaseous refrigerant has a larger coverage area and more sufficient heat exchange, thereby improving the heat exchange efficiency of the condenser.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration, and in particular to a condenser and a refrigeration device. Background Art

[0002] Screw compressors need to be lubricated with lubricating oil to achieve sealing performance. Since the lubricating oil does not evaporate, the refrigerant and the lubricating oil will enter the condenser together, which will cause the lubricating oil in the compressor to continue to decrease, resulting in the system being unable to operate safely. In order to ensure the normal operation of the compressor, the lubricating oil needs to be separated through an oil separator and then sent back to the compressor through the oil return line. If the separation efficiency of the lubricating oil is not high, the lubricating oil will adhere to the condenser tube, resulting in insufficient contact between the refrigerant and the condenser tube, affecting the heat exchange efficiency of the condenser.

[0003] It should be noted that the statements in this background technology section only provide background technology related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0004] In the related technologies known to the inventor, for the condenser with a built-in oil separator, the oil separator is arranged above the condenser tube, and the gas has the characteristic of moving upward. Therefore, the speed of the gaseous refrigerant entering the condenser after leaving the oil separator is uneven, and the contact with the condenser tube below is uneven, and the condenser tube in the entire heat exchange area cannot be covered. Therefore, the heat exchange efficiency is not ideal.

[0005] In view of this, the present invention provides a condenser and a refrigeration device to improve the heat exchange efficiency of the condenser.

[0006] A first aspect of the present invention provides a condenser, comprising:

[0007] Condenser housing;

[0008] An air inlet pipe is arranged on the condenser shell;

[0009] A condenser tube bundle is disposed in the condenser shell; and

[0010] The oil separator is arranged in the condenser shell and is connected with the air inlet pipe. The oil separator is located below the condenser tube bundle.

[0011] In some embodiments, the oil separator includes an oil separator body, which includes a connecting hole for passing an air inlet pipe and a plurality of air outlet holes for allowing gaseous refrigerant to flow out. The air inlet pipe enters the oil separator body from the connecting hole, and the oil-gas mixture enters the oil separator body through the air inlet pipe for oil-gas separation, and the gaseous refrigerant flows out of the oil separator body through the air outlet holes.

[0012] In some embodiments, the oil separator further includes an oil filter disposed in the oil separator body, and the outlet end of the air inlet pipe is located below the oil filter.

[0013] In some embodiments, the distance between the outlet end of the air intake pipe and the lower surface of the oil filter is in the range of 20 mm to 80 mm.

[0014] In some embodiments, a plurality of air outlet holes are located above the oil filter.

[0015] In some embodiments, the oil separator also includes a baffle disposed on at least one side of the oil separator body in the width direction, and a plurality of air guide holes are disposed on the baffle. After the gaseous refrigerant flows out of the oil separator body through the air outlet holes, it flows upward through the air guide holes on the baffle and exchanges heat with the condensation tube bundle.

[0016] In some embodiments, the baffle includes an inclined section inclined relative to the horizontal plane, and the distance between the inclined section and the horizontal plane gradually increases from the inner end to the outer end of the inclined section in the width direction of the oil separator body.

[0017] In some embodiments, the baffle further includes a horizontal section connected to the oil separator body, an inner end of the inclined section is connected to the horizontal section, and an angle between the inclined section and the horizontal section ranges from 120° to 160°.

[0018] In some embodiments, the angle between the inclined segment and the horizontal segment is 145°.

[0019] In some embodiments, the plurality of air guide holes are arranged in sequence on the inclined section, and the radius of the air guide holes gradually increases from the inner end to the outer end of the inclined section.

[0020] In some embodiments, the condenser tube bundle includes a first condenser tube bundle and a second condenser tube bundle distributed along the height direction, the second condenser tube bundle is located above the first condenser tube bundle, and the diameter of the condenser tubes of the second condenser tube bundle is smaller than the diameter of the condenser tubes of the first condenser tube bundle.

[0021] In some embodiments, the multiple condenser tubes of the first condenser tube bundle are evenly distributed, the multiple condenser tubes of the second condenser tube bundle are evenly distributed, and the distance between the tube walls of adjacent condenser tubes of the second condenser tube bundle is greater than the distance between the tube walls of adjacent condenser tubes of the first condenser tube bundle.

[0022] In some embodiments, the diameter of the condenser tubes of the first condenser tube bundle is 25.4 mm, and the center distance between adjacent condenser tubes of the first condenser tube bundle is 30 mm; and / or the diameter of the condenser tubes of the second condenser tube bundle is 19.05 mm, and the center distance between adjacent condenser tubes of the second condenser tube bundle 32 is 30 mm.

[0023] A second aspect of the present invention provides a refrigeration device, comprising the above-mentioned condenser.

[0024] Based on the various aspects provided by the present invention, the condenser includes a condenser shell, an air inlet pipe, a condenser tube bundle and an oil separator. The air inlet pipe is arranged on the condenser shell. The condenser tube bundle is arranged in the condenser shell. The oil separator is arranged in the condenser shell and is connected to the air inlet pipe, and the oil separator is located below the condenser tube bundle. The condenser of the present invention arranges the oil separator below the condenser tube bundle. After the oil-gas mixture is separated from the oil and gas, the lubricating oil directly leaves the bottom of the condenser shell and returns to the compressor. The gaseous refrigerant moves upward and diffuses into the inside of the condenser tube bundle to fully contact and exchange heat with the condenser tube. Compared with the related art in which the gaseous refrigerant needs to exchange heat with the condenser tube located on the lower side of the oil separator, the gaseous refrigerant covers a larger area and exchanges heat more fully, thereby improving the heat exchange efficiency of the condenser.

[0025] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 It is a schematic diagram of the main structure of a condenser according to an embodiment of the present invention.

[0028] Figure 2 for Figure 1 A side view schematic diagram of the condenser is shown.

[0029] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the oil separator.

[0030] Figure 4 for Figure 3 A side structural schematic diagram of the oil separator is shown.

[0031] Figure 5 for Figure 3 Schematic diagram of the three-dimensional structure of the middle baffle. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0035] The condenser of the embodiment of the present invention is designed by improving the layout of the oil separator and the layout of the heat exchange piping area according to the running tracks of the gaseous refrigerant and the lubricating oil in the condenser.

[0036] refer to Figure 1 and Figure 2In some embodiments, the condenser includes a condenser shell 1, an air inlet pipe 5, a condenser tube bundle 3, and an oil separator 4. The air inlet pipe 5 is disposed on the condenser shell 1. The condenser tube bundle 3 is disposed in the condenser shell 1. The oil separator 4 is disposed in the condenser shell 1 and communicated with the air inlet pipe 5. The oil separator 4 is located below the condenser tube bundle 3.

[0037] The condenser of the embodiment of the present invention arranges the oil separator 4 below the condenser tube bundle 3. After the oil-gas mixture is separated, the lubricating oil directly leaves from the bottom of the condenser shell 1 and returns to the compressor. The gaseous refrigerant moves upward and diffuses into the inside of the condenser tube bundle 3 to fully contact and exchange heat with the condenser tubes. Compared with the related technology in which the gaseous refrigerant needs to exchange heat with the condenser tubes located on the lower side of the oil separator, the gaseous refrigerant covers a larger area and exchanges heat more fully, thereby improving the heat exchange efficiency of the condenser.

[0038] In some embodiments, reference Figure 3 The oil separator 4 includes an oil separator body 41, and the oil separator body 41 includes a connecting hole 411 for penetrating the air inlet pipe 5 and a plurality of air outlet holes 412 for allowing the gaseous refrigerant to flow out. The air inlet pipe 5 enters the oil separator body 41 through the connecting hole 411. The oil-gas mixture enters the oil separator body 41 through the air inlet pipe 5 to separate the oil and gas, and the gaseous refrigerant flows out of the oil separator body 41 through the air outlet holes 412.

[0039] Specifically in Figure 3 In the illustrated embodiment, the oil separator body 41 is a cubic structure. The connecting hole 411 is provided on the top wall of the oil separator body 41, and the air outlet hole 412 is provided on the side wall of the oil separator body 41. In other embodiments not shown in the drawings, the oil separator body may also be in other shapes such as a columnar shape or a spherical shape.

[0040] refer to Figure 2 In some embodiments, the oil separator 4 further includes an oil filter 44 disposed in the oil separator body 41, and the outlet end of the air intake pipe 5 is located below the oil filter 44. The cross-sectional shape of the oil filter 44 is the same as that of the oil separator body 41, and is disposed in the middle of the oil separator body 41. The outlet end of the air intake pipe 5 extends below the oil filter 44, so that the oil-gas mixture flowing out of the outlet end of the air intake pipe 5 must be filtered by the oil filter 44 during the upward movement, thereby improving the oil separation efficiency.

[0041] In some embodiments, the distance between the outlet end of the air inlet pipe 5 and the lower surface of the oil filter 44 ranges from 20 mm to 80 mm. Preferably, the distance is 40 mm.

[0042] In some embodiments, the plurality of air outlet holes 412 are located above the oil filter 44 .

[0043] refer to Figure 2 and Figure 3 In some embodiments, the oil separator 4 further includes a baffle 42 disposed on at least one side of the oil separator body 41 in the width direction. The baffle 42 is provided with a plurality of air guide holes 421. After the gaseous refrigerant flows out of the oil separator body 41 through the air outlet 412, it flows upward through the air guide holes 421 on the baffle 42 and exchanges heat with the condensation tube bundle 3. The baffle 42 serves to block the liquid and guide the air.

[0044] In order to gather the liquid refrigerant dripping onto the oil separator 4, in some embodiments, reference Figure 2 and Figure 3 The baffle 42 includes an inclined section that is inclined relative to the horizontal plane, and the distance between the inclined section and the horizontal plane gradually increases from the inner end to the outer end of the inclined section in the width direction of the oil separator body 41. In other words, the height of the inner end of the inclined section is lower than the height of the outer end, so that part of the liquid refrigerant dripping onto the baffle 42 can slide down along the inclined section under the action of gravity and flow to the upper surface of the oil separator body 41.

[0045] In some embodiments, reference Figure 2 and Figure 3 The baffle 42 further includes a horizontal section connected to the oil separator body 41, the inner end of the inclined section is connected to the horizontal section, and the angle between the inclined section and the horizontal section is in the range of 120° to 160°. Preferably, the angle is 145°.

[0046] And in Figure 2 and Figure 3 In the illustrated embodiment, the horizontal section exceeds the edge of the oil separator body 41. That is, a portion of the horizontal section is provided between the inner end of the inclined section and the edge of the oil separator body 41.

[0047] In other embodiments not shown in the drawings, the inner end of the inclined section is directly connected to the oil separator body.

[0048] In order to prevent the liquid refrigerant dripping onto the inclined section from blocking the air guide hole 421 and affecting the outflow of the gaseous refrigerant, in some embodiments, reference Figure 5 , multiple air guide holes 421 are arranged in sequence on the inclined section, and the radius of the air guide holes gradually increases from the inner end to the outer end of the inclined section. That is to say, the radius of the air guide hole at the outer end of the inclined section is larger, then correspondingly, the gaseous refrigerant at the outer end of the inclined section forms a greater resistance to the dripping liquid refrigerant, thereby preventing the liquid refrigerant from dripping downward through the air guide hole to a certain extent and sliding down along the inclined section. The radius of the air guide hole at the inner end of the inclined section is smaller, then correspondingly, the gaseous refrigerant at the inner end of the inclined section forms a smaller resistance to the liquid refrigerant, which facilitates the liquid refrigerant to slide and accumulate toward the inner end of the inclined section.

[0049] Since the speed of the gaseous refrigerant moving from the oil separator 4 to the top of the condenser shell 1 in the air flow field gradually decreases, that is, the air flow intensity gradually weakens. In order to make the distribution of the condensing tube bundle adapt to the speed of other refrigerants and thus improve the heat exchange capacity, reference Figure 2 In some embodiments, the condenser tube bundle 3 includes a first condenser tube bundle 31 and a second condenser tube bundle 32 distributed along the height direction. The first condenser tube bundle 31 is located below the second condenser tube bundle 32. The diameter of the condenser tubes of the first condenser tube bundle 31 is greater than the diameter of the condenser tubes of the second condenser tube bundle 32.

[0050] In some embodiments, the multiple condenser tubes of the first condenser tube bundle 31 are evenly distributed, the multiple condenser tubes of the second condenser tube bundle 32 are evenly distributed, and the spacing between the tube walls of adjacent condenser tubes of the second condenser tube bundle 32 is greater than the spacing between the tube walls of adjacent condenser tubes of the first condenser tube bundle 31. In this way, when the gaseous refrigerant moves to the second condenser tube bundle 32, the spacing between the tube walls of adjacent condenser tubes becomes larger, which is conducive to the gaseous refrigerant with a slower flow rate to fully exchange heat with the condenser tubes, thereby increasing heat exchange.

[0051] An embodiment of the present invention further provides a refrigeration device, comprising the above-mentioned condenser.

[0052] According to the following Figures 1 to 5 The structure of a condenser according to a specific embodiment of the present invention is described in detail.

[0053] like Figure 1 As shown, the condenser of this embodiment includes a condenser shell 1, a support plate assembly 2, a condenser tube bundle 3, an oil separator 4, an air inlet pipe 5 and an oil guide pipe 7.

[0054] like Figure 1 As shown, the air inlet pipe 5 is arranged on the condenser housing 1 and extends into the interior of the condenser housing 1, and the air inlet pipe 5 is used to introduce the oil-gas mixture A into the condenser housing 1. The oil guide pipe 7 is arranged at the bottom of the condenser housing 1 and is used to guide the lubricating oil C separated by the oil separator 4.

[0055] The support plate assembly 2, the condenser tube bundle 3 and the oil separator 4 are all arranged in the condenser shell 1. Figure 2 As shown, in the height direction, the oil separator 4 is arranged below the condenser tube bundle 3. The air inlet pipe 5 is arranged on the condenser shell 1 and extends into the oil separator 4. The distance between the top of the oil separator 4 and the center of the condenser shell 1 is controlled to be 200mm-400mm, and the preferred distance is 280mm.

[0056] like Figure 2 and Figure 3As shown, the oil separator 4 includes an oil separator body 41, a baffle 42 and an oil filter 44. The oil separator body 41 is a square structure, a connecting hole 411 is provided on its top wall, and an air outlet 412 is provided on its side wall. The air inlet pipe 5 penetrates into the oil separator body 41 through the connecting hole 411 to introduce the oil-gas mixture A into the oil separator body 41. After the oil-gas mixture A completes the oil-gas separation inside the oil separator body 41, the lubricating oil drips onto the bottom surface of the oil separator body 41, and the gaseous refrigerant B leaves the oil separator body 41 through the air outlet 412. The diameter range of the air outlet 412 is 10 mm to 30 mm. Preferably, the diameter of the air outlet 412 is 20 mm.

[0057] like Figure 2 As shown, the outlet end of the air intake pipe 5 exceeds the lower surface of the oil filter 44. In some embodiments, the outlet end of the air intake pipe 5 exceeds the lower surface of the oil filter 44 by 20 mm to 80 mm. Preferably, the outlet end of the air intake pipe 5 exceeds the lower surface of the oil filter 44 by 40 mm. The thickness of the oil filter 44 is preferably 40 mm.

[0058] like Figure 1 and Figure 2 As shown, the oil-gas mixture A enters the oil separator body 41 through the air intake pipe 5, the cross-sectional area rapidly increases, the airflow is dispersed in a disordered state, and the oil-gas mixture A moves upward through inertial separation and gravity separation as well as the filtering action of the oil filter 44, so as to separate the lubricating oil and the gaseous refrigerant. The separated lubricating oil is in the form of droplets, which drip to the bottom of the oil separator body 41 and merge into flowing lubricating oil. The lubricating oil thus flows directly into the oil guide pipe 7 at the bottom of the oil separator 4 and flows back to the compressor through the action of the pressure difference.

[0059] In this embodiment, the baffle 42 is disposed outside the oil separator body 41. The gaseous refrigerant B passes through the baffle 42 after leaving the oil separator body 41 through the gas outlet 412. The baffle 42 serves to block lubricating oil droplets.

[0060] Further, at least a portion of the baffle 42 is arranged to be inclined relative to the top wall of the oil separator body 41. Specifically, Figure 5 As shown, the baffle 42 includes a horizontal section and an inclined section, wherein the horizontal section is connected to the top wall of the oil separator body 41, and the air guide hole 421 is arranged on the inclined section. The outer end of the inclined section is higher than the inner end thereof.

[0061] The inclination angle between the inclined section and the horizontal section is in the range of 120° to 160°. Preferably, considering the cross-sectional area mutation ratio and the gas diffusion area, the inclination angle of the inclined section is in the range of 145°.

[0062] The gaseous refrigerant B is evenly diffused onto the condenser tube bundle 3 through the air guide holes of the baffle 42, effectively ensuring that the gaseous refrigerant B covers the entire heat exchange area and fully contacts and exchanges heat with the condenser tubes. The gaseous refrigerant B forms droplet-shaped liquid refrigerant D after heat exchange. The droplet-shaped liquid refrigerant D will drip onto the upper surface of the oil separator 4. Part of the liquid refrigerant D will drip onto the baffle 42, and under the action of gravity, it will flow to the top wall of the oil separator body 41 along the slope of the inclined section, gradually collect liquid to form a liquid flow, flow through both sides of the oil separator body 41 to the bottom of the condenser shell 1, and reach the next component of the refrigeration device through the liquid outlet 15.

[0063] like Figure 5 As shown, a plurality of air guide holes 421 are sequentially arranged on the inclined section. In order to prevent the liquid refrigerant D falling on the baffle 42 from blocking the air guide holes 421 on the baffle 42 and affecting the outflow of the gaseous refrigerant, the diameter of the air guide holes 421 gradually increases from the inner end to the outer end of the inclined section. In other words, the diameter of the air guide hole at the inner end is smaller than the diameter of the air guide hole 421 at the outer end. Preferably, the diameter of the smallest air guide hole 421 is 15 mm.

[0064] like Figure 2 As shown, the layout of the condenser tube bundle is analyzed. Since the airflow intensity of the gaseous refrigerant moving from the oil separator 4 to the top of the condenser shell 1 gradually weakens in the airflow field, a condenser tube with a smaller specification and a larger tube wall spacing is used on the top of the shell. Preferably, the condenser tube has a diameter of 19.05 mm, and the center distance between adjacent condenser tubes is preferably 30 mm; to meet the tube-side pressure drop problem, the remaining condenser tubes preferably have a diameter of 25.4 mm, and the center distance between adjacent condenser tubes is preferably 30 mm. According to the analysis of the airflow, the distance from the bottom of the small-sized condenser tube to the center of the shell is controlled at 150 mm-230 mm, preferably 170 mm. This distribution not only improves the heat exchange capacity, but also plays a certain role in the uniformity of the flow field. Small tubes can be used for liquid balancing, and large tubes can be used at the bottom to adjust to the appropriate tube-side pressure drop, while reducing the space occupied by the pressure vessel.

[0065] The condenser of this embodiment is assembled as follows: assembled from bottom to top, the liquid outlet and the oil guide pipe are located at the bottom, the oil separator is welded to the lower part of the condenser shell, and the air inlet pipe is inserted from the top of the shell under the oil filter.

[0066] In summary, the condenser of this embodiment places the oil separator and the oil guide pipe under the shell, making full use of the effect of gravity to make the lubricating oil flow, while effectively ensuring that the gaseous refrigerant covers the overall multi-specification heat exchange area, with high oil separation efficiency, effectively improving the heat exchange efficiency of the condenser.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A condenser, characterized in that: include: Condenser housing (1); An air inlet pipe (5) is arranged on the condenser shell (1); A condenser tube bundle (3) is arranged in the condenser shell (1); and An oil separator (4) is arranged in the condenser shell (1) and is connected to the air inlet pipe (5); the oil separator (4) is located below the condenser tube bundle (3).

2. The condenser according to claim 1, characterized in that The oil separator (4) includes an oil separator body (41), and the oil separator body (41) includes a connecting hole (411) for penetrating the air inlet pipe (5) and a plurality of air outlet holes (412) for allowing the gaseous refrigerant to flow out. The air inlet pipe (5) enters the oil separator body (41) from the connecting hole (411), and the oil-gas mixture enters the oil separator body (41) through the air inlet pipe (5) for oil-gas separation, and the gaseous refrigerant flows out of the oil separator body (41) through the air outlet holes (412).

3. The condenser according to claim 2, characterized in that: The oil separator (4) further comprises an oil filter (44) arranged in the oil separator body (41), and the outlet end of the air intake pipe (5) is located below the oil filter (44).

4. The condenser according to claim 3, characterized in that The distance between the outlet end of the air intake pipe (5) and the lower surface of the oil filter (44) ranges from 20 mm to 80 mm.

5. The condenser according to claim 3, characterized in that: The plurality of air outlet holes (412) are located above the oil filter (44).

6. The condenser according to claim 2, characterized in that: The oil separator (4) also includes a baffle (42) arranged on at least one side of the oil separator body (41) in the width direction, and a plurality of air guide holes (421) are arranged on the baffle (42). After the gaseous refrigerant flows out of the oil separator body (41) through the air outlet hole (412), it flows upward through the air guide holes (421) on the baffle (42) and exchanges heat with the condensation tube bundle (3).

7. The condenser according to claim 6, characterized in that The baffle (42) comprises an inclined section arranged obliquely relative to a horizontal plane, and the distance between the inclined section and the horizontal plane gradually increases from the inner end to the outer end of the inclined section in the width direction of the oil separator body (41).

8. The condenser according to claim 7, characterized in that The baffle (42) further comprises a horizontal section connected to the oil separator body (41), the inner end of the inclined section is connected to the horizontal section, and the angle between the inclined section and the horizontal section ranges from 120° to 160°.

9. The condenser according to claim 8, characterized in that The angle between the inclined section and the horizontal section is 145°.

10. The condenser according to claim 7, characterized in that The plurality of air guide holes (421) are arranged in sequence on the inclined section, and the radius of the air guide holes gradually increases from the inner end to the outer end of the inclined section.

11. The condenser according to any one of claims 1 to 10, characterized in that: The condensation tube bundle (3) comprises a first condensation tube bundle (31) and a second condensation tube bundle (32) distributed along the height direction, the second condensation tube bundle (32) is located above the first condensation tube bundle (31), and the diameter of the condensation tubes of the second condensation tube bundle (32) is smaller than the diameter of the condensation tubes of the first condensation tube bundle (31).

12. The condenser according to claim 11, characterized in that The multiple condenser tubes of the first condenser tube bundle (31) are evenly distributed, the multiple condenser tubes of the second condenser tube bundle (32) are evenly distributed, and the spacing between the tube walls of adjacent condenser tubes of the second condenser tube bundle (32) is greater than the spacing between the tube walls of adjacent condenser tubes of the first condenser tube bundle (31).

13. The condenser according to claim 12, characterized in that The diameter of the condenser tubes of the first condenser tube bundle (31) is 25.4 mm, and the center distance between adjacent condenser tubes of the first condenser tube bundle (31) is 30 mm; and / or the diameter of the condenser tubes of the second condenser tube bundle (32) is 19.05 mm, and the center distance between adjacent condenser tubes of the second condenser tube bundle (32) is 30 mm.

14. A refrigeration device, characterized in that: Comprising the condenser according to any one of claims 1 to 13.

Images